Box-holding clamp.



A. N. WElDENBACHi BOXHOLDING CLAMP.

APPLICATION FILED JUNE I, 1918.

Patented Apr. 8, 1919. 2 SHEETS-SHEET! A. N. WEIDENBACH.

BOX HOLDING CLAMP.

APPLICATION FILED JUNE 1. 19m

1 ,299,64(). Patented Apr. 8,1919.

2 SHEETSSHEET 2.

Weidenbach I rm ANDREW N.WEIDE1 TIBACH, OF MITCHELL, SOUTH DAKOTA.

BOX-HOLDING CLAMP.

tain new and useful Improvements in Box- Holding Clamps, of which thefollowing is a specification, reference being had to the accompanyingdrawings.

This invention relates to work holdersand particularly to certainimprovements in that class of work holding machines in which aform isprovided for supporting and clamping the side boards and bottom boardsof egg cases and like crates while they are being nailed.

The general object, of this invention is to provide a work holdingsupport adapted to be raised by means of a pedal and to be rotated to aplurality of positions and to provide means whereby the work holdingsupport may be held in its rotated positions so that when the supportand work are lowered onto a table, the work will come down flat on thetable and thereby prevent the material being knocked out of place whenthe support is lowered onto the table.

Other objects have to do with improvements in the details ofconstruction and arrangement of the several parts as will hereafterappear. 7 v V My invention is illustrated in the accompanving drawings,wherein v Figure 1 is a perspectiveview of a box forming machinecontaining my improvements;

Fig. 2 is a fragmentary longitudinal sectional view through the machine;

Fig. 3 is a section. on the line 3 -3 of FiL'. 2;

Fig. 4 is an end elevation showing the box support rotated to permit thenailing on of the sides of the box;

Fig. 5 is a section .on the line 55 of Fig. 2;

Fig. 6 is a section on the 1ine 6-6 of v Fig. 2; and

Fig. 7 is a perspective detail view of one of the lifting rods and thetrunnion of the box support. ,7

Referring to these drawings, it will be seen that the supporting frameor table of the machine comprises the longitudinal beams 10, thevertical legs 11. the transverse boards 12,- and the; braces 13 and 14,the

Specification of Letters Patent.

last named braces extending betwen each pair of legs. One pair of legsis connected by a longitudinal brace15 upon which a treadle 16 ishinged. Pivotally supported from ears 17, attached in any suitable.manner to the frame of the machine, are the levers 18, these levers attheir adjacent ends being provided with a plurality of perforations 19and being connected by links 20 to the treadle 16. The end pieces of thebox which is to be formed are supported upon a holder comprising alongitudinally extending base 21. To one end of this base is affixed theend piece 22, while to the othe end of the base is aflixed the end piece23, this end piece being cut away at its top, as at 24:. Extendingdownward through slots in the end boards 12 are the liftin rods 25 whichalso extend down through s ots in the cross pieces 13. These liftingrods are connected by a longitudinal bar 26 so that they will move inunison and are braced by angle irons 27. Links, preferably inthe form ofhooks 28, engage the ends of the bar 26 with the outer ends of thelevers 18. It will thus be seen that when the treadle is depressed, thelifting rods 25 will move upward.

The lifting rods or standards 25 are connected to the box support bymeans of trunnions 29 which extend out from the end pieces 22 and 23 andpass through openings in the lifting rods. These trunnions have a crossbar 30 at their extremities. and mounted upon each lifting rod is anoutwardly extending, resilient strip 31, formed at its upper end withcross depressions 32, in'which the T-shaped head 30 or cross bar of thetrunnion is adapted to en age. This strip 31-is somewhat resilient andthe resilience of the strip urges its upper end outward so that theT-shaped head 30 of each trunnion is held securelv in its adiustedposition and against accidental rotation. The outer face of each of themembersv22 and 23 is braced by a cross cleat 33 supported in position byirons 34 having outwardly turned upper extremities disposed beneath thecorresponding cleat.

, The member 23 constitutes a head for one end of the box body and forsupporting the opposite end of the box. I provide a head 35 which ispreferablv adiustable toward or from the head 23. To this end. the head35 is provided with angle irons 36, which-are slotted and bolts 37 passthrough these angle Patented Apr. 8, 1919.

Application filed June 1, 1918. Serial No. 237,774.

irons and into the base 21. By this means, the head 35 may be shiftedtoward or from the head 23 to accommodate boxes of longer or shorterlength. For the purpose of'supporting the middle partition of the eggcrate or box, I provide the head 38 which -also is supported by angleirons 39, these angle irons being slotted and engaged with the base bymeans of bolts 40 so that the middle partition may also be adjusted tosuit longer 38 coacts-wit-h aiclamping plateslt which is also outwardlydeflected at its upper end' and is connected by a hinge 45 to asupporting member :46 which at its lower end is connected to a springhinge 47." Preferably the outer edge faces of the heads 23 and 35 haveattached to them the metallic strips 48, which extend down slightlybelow-the upper "face-of-tlie base 21, so as to guide the adjustableheads, and preferably the base, 21 is cut away on each side as at 49 topermit the partition board of the box to be properly adjusted. It is forthis reason that the heads 23 and 35 are-also cut away as at 24 topermit the ready insertion and removal'of the end boards of the box orcrate. 'Preferably the upper faces of the boards 12 at a plurality ofpoints'are provided with metal reinforcingor wear strips 50-,the under'faceof the base21 being also provided with like wear strips 50 to restupon the first named strips when the box support is lowered.

Inthe practical operation of this device, the ends A ofthe crate areinserted between the clamps 4'1 and the heads 23 and 35, whileapartition board B is inserted between the clamp 44 and the head 38. thecrate may now be readily nailed upon the end boards and middle board ofthe crate and then the supporting frame is raised by depressing thepedal 16 and the box support isrotated a quarter of a revolution,and'again lowered, whereupon one of the side boards may be-nailedin'place. The box support may be again raised and rotated to-bring theother side vuppermostand the opposite side of the crate may then beattached. The completed crate can then be readily removed by simplylifting it off of the support and the device is ready to rece ve theboards of another crate.

By means of this invention, the box ele- Copies ofthis patent maylie-obtained .for.

The bottom of ments may be readily held in position while being nailedand the work of assembling the parts of the crate and nailing themtogether is very greatly "expedited and the accuracy of workmanshipincreased.

The T-shaped heads 30 coact with the springs 31 to lock the movable formin its adjusted positions so that the form will come down flat on thetable and not hit on the corner first and thereby knock the material outof place when-the 'form'is lows.

ered onto the table. 1

Having described my invention, what I,

claim is:

1. A machine of the character described comprising a table, standardsmounted upon the table for vertical movement, a box sup-- porting framemounted uponthe standards and having trunnions extending through-thestandards whereby the supporting frame may be :rotated in a plurality ofpositions with .rel-ationto the table, the standards .be-

ing mounted for erticail imirwez'nent where-- by the box supportedin's'aid frame maybe rested on the table in any one of the positions towhich the supporting frame may be rotated, and means mounted n thestandards for yieldingly "holding the box supporting frame in aplurality of rotated positions such =that-the box supporting frame willrest fiatuponthetable when the standards are lowered. v

2. A machine of the character described comprising a table, standardsmounted upon the table for vertical move ment, a box supporting framemounted upon the standards and having trunnions extending through the.standards, whereby the supporting frame may; be rotated into a pluralityof positions with relation to-the table, and resiliently yieldablemeansifor locking the trunnions in a plurality "of'rotated positions.

3. A machine of the character described slidably comprisingatable,standards verticallyslid- In testimony whereof I hereuntov afli x mysignature in the presenceof two witnesses.

ANDREW N. 'VVE'I'DENBAG'H. Witnesses:

L. S. VIGKERs, M. N. GAINES.

ve cents each, by addressing the Commissioner of'iatents,

Washington, D. G."

